一いっ知ち半はん解かいいっちはんかいじ字FuriganaMeanings1na-adjective, nounsuperficial knowledge; half knowledgeyojijukugo (four-character idiom)›A yojijukugo describing shallow, incomplete understanding. Often used critically of someone who knows only a little but acts knowledgeable.彼かれの説せつ